The cost od the carpool can be modeled by the following equation where c is cost of carpooling per week and m is the most driven to school each week:
c + 1/2(0.303+ 25)
a) find the total weekly carpooling cost, c, if the commute to school is 8 miles each way and paula goes to school four times a week.

b) find the number of miles, m, if the cost is $30.50.

c) solve the equation for m.

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.

y∈r, 8> y≥0

hope i !

p.s the first bit only matters if you know what that means.

p.p.s brainliest would really

a≈380.13mi² would be your answer if the radius was 11 miles